Re: rest mass/relativistic mass question


"Chalky" <utpalchakraborty@xxxxxxxxx> wrote in message
news:1140127497.964435.327250@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I was thinking about something and got confused so I thought I will
post it here and hopefully someone more knowledgeable than me can clear
the confusion.

As a thought experiment, suppose, we are accelerating a proton in a
large accelerator (as large as you need it to be). It will continuously
gain mass/energy. Will a time come when it has gained sufficient mass
energy to form a black hole? If not why not?

If yes, then what happens to an observer who is always at rest relative
to the proton? To that observer nothing is happening but then suddenly
the proton turns into a hole? Isn't physics seemingly violated for that
observer?

thanks for any clarification.

If a object is not a black hole in one frame of reference then it won't be a
black hole in any other frame even though the grazvitational field will
increase with speed. Most people believe an object is a black hole *because*
it has more than a certain amount of mass. But that is not the case. The
mass must be confined within a certain sperical region of space. Take Mount
Everest as an example. We all know that Mt. Everest is not a black hole. But
its theoretically possible to have a black hole with the same mass of Mt.
Everest. Black holes around this size are refered to as mini-black holes.

Pete


.

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